Home / 147,782.57-203,940.18-84,120.37

Finding the Fourth Proportional to 147,782.57, 203,940.18 and 84,120.37

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Solution

The fourth proportional to 147,782.57, 203,940.18 and 84,120.37 is: 116,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,782.57 : 203,940.18 = 84,120.37 : x
  2. Step 2: Convert to fraction form
    147,782.57/203,940.18 = 84,120.37/x
  3. Step 3: Cross multiply
    147,782.57x = 203,940.18 × 84,120.37
  4. Step 4: Simplify right side
    147,782.57x = 17,155,523,399.47
  5. Step 5: Solve for x
    x = 17,155,523,399.47/147,782.57
  6. Step 6: Final answer
    x = 116,086.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.